Calvin fulton



UNITED sTATEs PATENT oEEroE.

CALVIN FULTON, OF ROCHESTER, NEW YORK.

COOKING-STOVE.

Specification of Letters Patent No. 3,626, dated Tune 10, 1844.

T0 all LU/zona t may concern Be it known that I, CALVIN FULTON, ofRochester, in the county of Monroe and State of New York, have inventedcertain new and useful Improvements in Cooking- Stoves; and I do herebydeclare that the following' is a full and exact description thereof.

In the accompanying drawing Figure 1, is a perspective view of my stove,the top plat-e which is to receive the boilers, and the doors likewisebeing removed for' the purpose of showing the interior. The top plate isshown separately in Fig. 3. Fig. 2 is a section through the middle ofthe stove from front to back.

A, is the fire chamber, and B, the oven; between these two compartmentsI place three distinct and separate plates, forming two air spacesbetween them; these plates are marked a, b, and c, in the drawing. Atthe lower part of the plate c, which constitutes the direct lire back,there is a curved plate (Z, furnished with catches that hook into thelower edge of c, and that may be lifted outat pleasure; this curvedplate constitutes the lower part of the fire back, a large part of theignited coals resting against it. By dividing the fire back in thismanner its tendency to warp and burn out is much diminished. It is alsofurther protected by the free admission of cool air between thefire-back and the plate ZJ; for this purpose an opening is made throughthe botto-1n plate of the sto-ve as at e, Fig. 2; it-s place is alsoshown by dottedlines on the plate d, Fig. 1; there are also holesopening into the same space throughl each of the side plates, as shownat f, f, Fig. l, thus establishing a free current of air. The spacebetween the plates and o, communicates with the flue space below theoven, so thatthe heated air in this flue space passes freely into it,and preserves a regular moderated heat in this part, an effect whichcould not be thus produced without the aid of the` three plates.

Immediately over the fire chamber, and on a level, or nearly so, withthe top plate D, of the oven, I place a sliding shutter C, which restsupon ledges, and incloses about one half of the space occupied by theupper part of the fire chamber; this shutter may be slid back and `forthby means of a rod, so

i that it may occupy the middle space when two boilers are to be actedupon; or by closing one half of the opening at one end of the firechamber,` the whole draft will be made to act against the bottom of asingle kettle, or boiler, thus rendering a small iire eiective when onevessel only is to be used. I sometimes divide the iiue space above theoven into two parts by a partition plate along its middle, from front toback, and thereby confine the heat, in great part, to one side of thisspace; but this is not essentia The rear flue is divided into threesections, by two partitions which are extended along toward the front,in the lower flue, as shown at E; and there is a valve at F, by whichthe draft may be directed through these iiues, or be allowed to passimmediately into the exit pipe. This arrangement is in all respectssimilar to that made in several other stoves.

For the purpose of giving a permanent support to the drop doors of theoven, I eX- ten-d the lap, or hearth G, of my stove back, so as to reachthe fore edge of the oven door, and when said doo-r is ope-ned, so as tostand horizontally, it rests on the part G', of said lap, and the strainupon its hinge joints is thereby effectually taken ofi.

I give free admittance to the flue space under the oven, through anopening below or stopper g, that may be lifted out at pleasure; and asthe plate CZ, may be readily unhooked from the plate a, the shutter g,may easily be removed, and the :iiue space cleaned. This, however, willbe .rarely required, as it is advantageous to allow the bottom plate tobe covered to so-me height with a bad conducting substance.

Having thus fully described the manner in which I construct my cookingstove, what I claim as new and desire to secure by Letters Patent, is-

l. The `employment of three plates between the fire chamber andthe oven;the foremost of these plates being divided into two parts as shown at a,andcl, these parts being connected together, and combined with theplates and c, and with the body of the stove, as set forth.

2. I claim, also, the manner of supporting the drop doors of the ovensby extending the lap, or hearth, back to them, as described.

oALvIN FULTON. (L. s]

Witnesses:

Tiros. P. JONES, v

EDWIN L, BRUNDAGE.

